NGK Laser Iridium spark plugs are the upgrade many owners make on the 3.6L Pentastar V6 found in Dodge, Jeep and Chrysler vehicles. Each plug has a fine iridium center tip and an iridium alloy electrode that resists fouling and holds a stable spark under heat. The trivalent metal plating fights corrosion and seizing in aluminum heads. Against standard copper or platinum plugs they last longer and keep throttle response crisp, and the 46 ratings on this set average 4.9.
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Owners rate these plugs very highly, with 4.9 out of 5 across 46 ratings. Most mention smoother idle and quicker starts after the swap, and several note they chose iridium for longevity over the factory copper plugs.
These NGK Laser Iridium spark plugs come as a set of 6 for 3.6L V6 engines in a range of Jeep, Dodge, Chrysler and Ram vehicles. They work in both supercharged and non-supercharged engines.
Each plug has a fine iridium tip. The iridium alloy has a very high melting point and gives a stable spark. Trivalent metal plating protects the plug from corrosion and seizing in the cylinder head.
The plugs are not pre-gapped, so check and set the gap before installing. Use a quality gapping tool or feeler gauge, and bend only the ground strap, never the iridium electrode. Inspect each plug for hairline cracks or damage before installation.
